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- Bluetooth version: 5.0
- Charging voltage: 5V
- Charging time: 2hr
- Talk time: >30hr
- Music time: >25hr
- Number of intercoms: unlimited
- Intercom distance: 200M*N (networking)
- Bluetooth intercom time: 20hr
- Battery capacity: 750mAh
Helmet Bluetooth Headset
MZ-391
